82 SECTION CAMAROPHYLLOPSIS 



their obtuse, viscid pilei. Dennis properly places it under Camarophyl- 

 lus ( Camarophyllopsis ) . 



26 



Hygrophorus fumosellus Sm. & Hes. 



Sydowia 8: 316. 1954 



Pileus 2.5-5 cm broad, convex, expanding to concave as margin 

 becomes elevated, hygrophanous but not viscid, "sayal brown" when 

 moist, "pinkish cinnamon" faded, margin faintly striatulate when moist, 

 innately silky faded ( under a lens ) . Context dingy white, thick on disc, 

 thin on margin; odor and taste mild. 



Lamellae arcuate-decurrent, near "pale pinkish buff" but with a 

 smoky tint, moderately broad and close, intervenose, somewhat forked, 

 edges even. 



Stipe 3-5 cm long, 5-10 mm thick, dingy white, tapered downward, 

 glabrous, dry, rigid, solid. 



Spores 9-11 X 5-6 fx, ellipsoid, smooth, yellowish in Melzer's rea- 

 gent, hyaline in KOH. Basidia 50-62 X 6-7 /*, 4-spored. Pleurocystidia 

 and cheilocystidia none. Gill trama compactly and intricately inter- 

 woven, hyphae 4-10 \l broad. Cuticle a cutis, hyphae chiefly repent, 

 radially disposed, 3-4 /*, broad. No hypodermium differentiated. Pileus 

 trama of radially disposed, more or less parallel hyphae. Clamp con- 

 nections present on the cuticular hyphae and at the base of the basidia. 



Habit, Habitat, and Distribution — Gregarious on soil in decidu- 

 ous woods, Tennessee, December. 



Material Studied — Tennessee: Hesler 14105 (type, from New 

 Hopewell, Knox County, Dec. 17, 1941). 



Observations — The sayal brown, striatulate pileus, peculiar smoky 

 tint of the gills, and the interwoven gill trama, along with the appear- 

 ance of the dried specimens, relate this species to H. pratensis and, at 

 the same time, distinguish it from the latter. The long, narrow basidia 

 distinguish it from species of Clitocybe if one is inclined to disregard 

 the character of waxiness. 



SUBSECTION MICROSPORI (Sm. & Hes.) stat. nov. 



Section Microspori Sm. & Hes., Lloydia 5: 7. 1942. 

 Key to Series 



1. Pileus dry to moist Series Microspori 



1. Pileus viscid Series Pelliculosi 



